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Model G0844 (Mfd. Since 2/18)
Replacing Brushes
This machine is equipped with a univer-
sal motor that uses a pair of carbon brush-
es to transmit power. These brushes are
considered to be regular "wear items" or
"consumables" that will eventually need to be
replaced. The frequency of this replacement is
directly related to how much the motor is used
and how hard it is pushed. These brushes are not
covered under warranty.
Replace both brushes at the same time
if the motor no longer reaches full power, oper-
ates inconsistently, or when the brushes measure
less than
1
⁄
4
" long (new brushes are
5
⁄
8
" long).
Tools Needed
Qty
Dime .................................................................. 1
Precision Ruler .................................................. 1
You can order a new brush kit (two brush assem-
blies) from Grizzly. The part number for the brush
kit is
P0844084-1.
To replace motor brushes:
1. DISCONNECT MACHINE FROM POWER!
2. Use dime to unscrew and remove brush caps
on front and rear of motor (see
Figure 46).
Figure 47. Removing brush from motor.
3. Remove brushes from motor (see Figure 47).
Note:
When brush caps are being removed,
a spring will pop out of the motor socket;
a spring is firmly attached to each carbon
brush. DO NOT separate brush from spring.
4. Use a ruler to measure wear of each carbon
brush. If either brush is worn to less than
1
/
4
"
in length, replace both brushes.
5. Insert new brush assemblies, positioning
them to slide into slots in motor sockets.
Individually, press each brush cap against
its spring, pushing it into motor socket and
turning each brush cap to lock it into motor
housing.
6. Test run machine.
— If machine runs properly, you are done.
— If motor does not start, either new brushes
are not correctly aligned in each socket,
or there is another problem with motor or
wiring. Double-check all wire connections
first, then refer to
Troubleshooting on
Page 32 for assistance.
Front Brush Cap
Figure 46. Location of front and rear brush caps.
Rear Brush Cap
Summary of Contents for G0844
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